Consolidated Balance Sheets Details - Accounts Receivable (Details) $ in Millions	3 Months Ended
	May 31, 2020 USD ($)	Feb. 29, 2020 USD ($)	May 31, 2019 USD ($)	Feb. 28, 2019 USD ($)
Balance Sheet Related Disclosures [Abstract]
Accounts Receivable, Allowance for Credit Loss, Current		$ 9
Accounts Receivable, Allowance for Credit Loss, Relating to CECL Estimated Based on Days Past Due and Region	$ 6
Accounts Receivable, Allowance for Credit Loss, Relating to Customers Evaluated Separately	6
Accounts Receivable, Allowance for Credit Loss, Relating to CECL Estimated for Long-term Accounts Receivable	$ 1
Number of customers with a balance greater than 10% of total accounts receivable	2	2
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Accounts Receivable, Allowance for Credit Loss, Beginning Balance	$ 9
Current period provision for expected credit losses	0
Accounts Receivable, Allowance for Credit Loss, Ending Balance	13
Stockholders' Equity Attributable to Parent	$ (1,913)	$ (2,529)	$ (2,597)	$ (2,636)
Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2016-13
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Stockholders' Equity Attributable to Parent		$ 4